APPENDIX I. 
561 
1. Hairs on st. and pan.-iach. dense and fairly long, usually 
patent. L. mostly 5-nate. 
a. Sep. normally reflexed, though often partially patent 
(or even erect) in fr. 
B./uscus Wh. ife N. Prk. rather short, somewhat scattered. 
Lts. coarsely toothed, softly hairy beneath : term, rather broad 
with long point. Pan. narrow, cylindrical, with sunken stkd. 
gl. and acic. 
Yar. nutans Rogers. Prk. usually more unequal. Lts. more 
deeply incised, with very attenuate point. Pan. very lax, sub- 
racemose above, drooping. Fr.-sep. usually erect at first. 
(This var. would hardly be out of place in Section 2.) 
Var. macrosiachys (P. J. Muell.). Prk. longer. Lts. whitish- 
felted beneath. Pan. conspicuously pj'ramidal, with divaricate 
branches and blackish-purple villous rach. Stam. comparatively 
short. 
b. Fr.-sep. mostly erect. 
Subsp. obsciirus Kalt. Chief prk. hooked or nearly so. 
Prklets acic. and stkd. gl. mostly very small. Lts. even -toothed. 
Pan. long, with deep red pet. and short stam. 
2. Hairs on st. abundant, rather short, loose or partly ap- 
pressed. L. 5-nate or 3 — 4-nate. Sep. erect or patent on 
unripe fr., often reflexed ultimately. 
a. L. mostly 5-nate. 
Ji. 2)allidus ^Mi. & X. Prk. usually confined to angles, 
mostly subequal. Lts. thin, very irregularly toothed, long and 
rather narrow. Pan. straggling-pyramidal, with wavy rach. 
slender ped. and mostly short blackish stkd. gl. 
Yar. leptopetcdus Rogers. St. most densely clothed with veiy 
short acic. and stkd. gl. Lts. with somewhat glaucous tint 
and sharply incised teeth. Pan. normally broad, with inter- 
lacing branches. Pet. small, very narrow. 
h. L. 3 — 4-nate, rarely 5-nate. 
R. scaber "^Mi. k X. St. roundish, glaucous, rough with 
minute acic. Prk. small. Lts. with fine teeth and rather 
short point. Pan. narrow, with short hair and mostly short 
stkd. gl. 
R. thyrsiger Bab. Hail's on st. partly appressed. Lts. 
coarsely irregularly toothed, obtasangular-obovate. Pan. long, 
subracemose, with long-pedicelled fl. 
3. Hairs on st. rather thinly scattered or nearly absent. L. 
mainly 3-nate. 
n. Sep. clasping young fr., mostly reflexed ultimately. 
R. Lintoni Focke. St. usually subglabrous. Prk. veiy 
slender. Lts. shining, w ith close fine teeth. Pan. cylindrical, 
racemose-corymbose, with veiy unequal stkd. gl. 
2 N 
